package com.itheima.dao;

import com.itheima.domain.User;

public interface Userdao {
    //添加
    public int add(User user);

    //根据用户名查找用户
    public User findusername(String username);

    //根据用户名密码查找用户
    public User findusernamepassword(String username,String password);


}
